Personally, this feels like a feature that is too focused on one problem to be a general feature. Python is getting huge. When people ask me if Python is easy and simple to learn I have to say "the basics, yes, but to to learn the whole language... not so much".
I feel like in this sense Go really is interesting by rejecting almost every single feature. Honestly not sure generics were worth it as they add a lot of complexity, and while they are nice, I don't need them very much. The general idea to keep the language at its original focus is the right idea IMO. C++ would be the most extreme case where the language itself barely resembles what it started out as.
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